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South Bay 521RS Black Out Package keeps an estimated 59% of its value after 5 years — #4785 of 5780 boats VINdown tracks.
Per VINdown's modeling, the South Bay 521RS Black Out Package retains an estimated 59% of its value after five years, ranking #4785 of 5780 boats we track. That trails the 62% five-year average for Pontoon in its class by 3 points, so it depreciates faster than most rivals.
Most of the loss lands early: the South Bay 521RS Black Out Package sheds about 8% of its value in year one alone. From roughly $39,075 it falls to around $27,837 by year five — a five-year loss near $11,238, about $6.16 a day in depreciation.
Because the steepest drop hits around year 3, a lightly-used South Bay 521RS Black Out Package bought at 3 years old lets the first owner absorb the worst of the depreciation while the curve flattens — usually the value sweet spot. Explore the full year-by-year curve, trims, and true cost of ownership in the Model Lab above.
It keeps an estimated 59% of its value after five years — worse than most among the 5780 boats VINdown tracks (ranked #4785).
From about $39,075 when new it drops to roughly $27,837 after five years — a loss near $11,238 (59% of its value retained).
Around 3 years old: that is just past the steepest depreciation, so you skip the biggest drop while the value curve is flattening.